Deck 34: Design and Construction of Fireplaces and Chimneys

Question 1

The space from the smoke shelf and damper up to the bottom of the flue lining is called the _____ .

A) firebox
B) smoke chamber
C) firebrick
D) thimble

Answer 1

B

Question 2

Fireplaces should be building as part of the outside wall in a residential structure.

Answer 2

False

Question 3

Usually a raised hearth is not built _____ to avoid the fireplace appearing out of proportion to the room.

A) higher than 12"
B) higher than 6"
C) lower than 15"
D) lower than 12"

Answer 3

A

Question 4

When using Type N portland cement-lime mortar, use _____ .

A) 2 parts portland cement, 1 part hydrated lime, and 5 parts sand
B) 1 part portland cement, 1 part hydrated lime, and 6 parts sand
C) 1 part portland cement, 2 parts hydrated lime, and 3 parts sand
D) 2 parts portland cement, 3 parts hydrated lime, and 4 parts sand

Question 5

As a rule, if stones are to be used for the facing of the fireplace, it is not necessary to dry bond.

Question 6

In general, the wider the opening of the fireplace, the greater the depth and height that the firebox should be.

Question 7

_____ should be used to build the smoke chamber, as it is more fireproof.

A) Soft brick
B) Building brick
C) Brick of any type
D) Hard brick

Question 8

The _____ is the part of the fireplace that contains the fire.

A) flue
B) firebox
C) hearth
D) firebrick

Question 9

The recommended method of building a fireplace is to complete it as the chimney is built.

Question 10

The smoke shelf is built by rolling the back wall of firebrick lining forward until it meets the rear flange of the fireplace damper.

Question 11

Tests have shown that portland cement-lime mortar is not heat resistant and should not be used in the combustion area of a fireplace.

Question 12

The masonry walls behind the firebrick and on the sides of the firebrick should be _____ thick to protect the firebox from overheating.

A) 5"
B) 6"
C) 7"
D) 8"

Question 13

In the past, when the rough hearth was constructed, a brick arch, called a _____ arch was laid on a wooden form beneath the hearth.

A) hearth
B) finished
C) formed
D) trimmer

Question 14

Flue lining comes in one type.

Question 15

The _____ that operates the lid of the damper sometimes has rough metal edges left from the casting process.

A) worm
B) snake
C) lock
D) stick

Question 16

When building the firebox, strike the mortar joints with a _____ jointer.

A) flush
B) raked
C) convex
D) beaded

Question 17

When building a chimney foundation, brick or concrete blocks should be dry bonded to work full Chapters without any cutting.

Question 18

The _____ type damper is operated by turning a projecting handle that is built into the face of the finished fireplace.

A) projecting
B) poker
C) rotary
D) spinning

Question 19

In present-day construction, brick trimmer arches are seldom used because they require more time to install.

Question 20

A hearth can be build flush with the floor or raised off the floor.

Question 21

A _____ arch is one of the strongest arches in which the abutment or pier is ample to resist the thrust.

A) centerline
B) plated
C) jack
D) segmental

Question 22

Before the first fire is built in the fireplace, the fireplace should cure _____ after construction.

A) a minimum of 45 days
B) at least 30 days
C) no more than 2 weeks
D) for 48 to 72 hours

Question 23

Adding a fireplace to a home will increase the value of the house by _____ and make it much more attractive to prospective home buyers.

A) approximately $12,000 to $15,0000
B) a maximum of $10,000
C) approximately $5,000 to $10,000
D) a maximum of $6,000

Question 24

The rule for a conventional fireplace (only one side open) is that the cross-sectional area of the flue lining should be _____ the total area of the fireplace opening.

A) 1/12
B) 1/10
C) 1/6
D) 1/5

Question 25

If the flue lining must be set an an incline or angle it should be _____ from vertical to prevent it from choking off.

A) between 33 and 45 degrees
B) exactly 45 degrees
C) no more than 30 degrees
D) no less than 30 degrees